Hakodate
Japan
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Hakodate, Japan

The first month of the autumn, Septiembre, is still a pleasant month in Hakodate, Japan, with average temperature varying between 22.7°C (72.9°F) and 14.1°C (57.4°F).

Temperature

In Hakodate, the average high-temperature in Septiembre marginally drops, from a warm 25.8°C (78.4°F) in Agosto, to an agreeable 22.7°C (72.9°F). In Hakodate, the average low-temperature is 14.1°C (57.4°F).

Humidity

In Septiembre, the average relative humidity in Hakodate is 76%.

Rainfall

In Septiembre, in Hakodate, the rain falls for 18 days. Throughout Septiembre, 152.5mm (6") of precipitation is accumulated. In Hakodate, during the entire year, the rain falls for 250 days and collects up to 1151.9mm (45.35") of precipitation.

Snowfall

In Hakodate snow does not fall in Mayo through Octubre.

Sea temperature

In Hakodate, the average seawater temperature is 20.9°C (69.6°F).
Note: Swimming in 20.9°C (69.6°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

Daylight

In Hakodate, the average length of the day is 12.5h.

Sunshine

In Hakodate, Japan, the average sunshine in Septiembre is 5.3h.

UV index

In Hakodate, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 6 interpret into the following advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the temperature in Septiembre in Hakodate?

In Septiembre, in Hakodate, the average high-temperature is 22.7°C (72.9°F), and the average low-temperature is 14.1°C (57.4°F).

What is the average humidity in Septiembre in Hakodate?

In Septiembre, the average relative humidity is 76%.

How many days does it rain in Septiembre in Hakodate?

In Hakodate, in Septiembre, during 18 rainfall days, 152.5mm (6") of precipitation is typically accumulated.

When it does not snow in Hakodate?

Mayo through Octubre are months without snowfall in Hakodate, Japan.

What is the sea temperature in Septiembre in Hakodate?

In Septiembre, the average sea temperature is 20.9°C (69.6°F). For most, swimming in 20.9°C (69.6°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).

How many hours of daylight does Hakodate have in Septiembre?

In Hakodate, the average length of the day in Septiembre is 12.5h.

How long on average sun shines in Septiembre in Hakodate?

The average sunshine in Septiembre in Hakodate is 5.3h.

What is the UV index reading in Septiembre in Hakodate?

In Septiembre, the average daily maximum UV index in Hakodate is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from the exposure to the Sun's UV radiation.
Average temperature in September - Hakodate, Japan
  • Average high temperature in September: 22.7°C

The warmest month (with the highest average high temperature) is August (25.8°C).
The month with the lowest average high temperature is January (0.7°C).

  • Average low temperature in September: 14.1°C

The month with the highest average low temperature is August (18.7°C).
The coldest month (with the lowest average low temperature) is January (-6.2°C).

Average humidity in September - Hakodate, Japan
  • Average humidity in September: 76%

The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is April (67%).

Average rainfall in September - Hakodate, Japan
  • Average rainfall in September: 152.5mm

The wettest month (with the highest rainfall) is August (153.8mm).
Driest months (with the lowest rainfall) are February and March (59.3mm).

Average rainfall days in September - Hakodate, Japan
  • Average rainfall days in September: 18 days

Months with the highest number of rainy days are January and December (28 days).
The month with the lowest number of rainy days is June (16 days).

Average snowfall in September - Hakodate, Japan
  • Average snowfall in September: 0mm

The month with the highest snowfall is January (1180mm).
Months with the lowest snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in September - Hakodate, Japan
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (27.8 days).
Months with the lowest number of snowfall days are May, June, July, August and September (0 days).

Average sea temperature in September - Hakodate, Japan
  • Average sea temperature in September: 20.9°C

The best month for swimming (with the highest average sea temperature) is August (21.8°C).
The coldest month (with the lowest average sea temperature) is March (4.9°C).

Average daylight in September / Average sunshine in September - Hakodate, Japan
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15.2h).
The month with shortest days is December (Average daylight: 9.2h).

  • Average sunshine in September: 5.3h

The month with most sunshine is April (Average sunshine: 6.3h).
The month with least sunshine is December (Average sunshine: 3h).

Average UV index in September - Hakodate, Japan
  • Average UV index in September: 6

The month with the highest UV index is July (UV index 9).
Months with the lowest UV index are January and December (UV index 1).